Skip to content

Our Team


Tarah Wheeler

Chief Executive Officer

Tarah Wheeler has consulted and worked with hundreds of security organizations and companies of all sizes. She is a sought-after cybersecurity speaker and author. She has multiple hacking championships and is deeply passionate about sharing cybersecurity best practices to companies of all sizes.

Tarah holds the following qualifications: MS (Masters of Science), CISSP (Certified Information Systems Security Professional), GIAC GMOB (Mobile Device Security Analyst), GIAC GXPN (Exploit Researcher and Advanced Penetration Tester), CISA (Certified Information Systems Auditor.

Smaller Square

Tom Lowenthal

Product Lead

Tom is a privacy, security, and trust & safety generalist who specializes in building tools which respect the people who use them. They have extensive experience working to support those who are most at risk of tech-mediated harm and exclusion — making technology as respectful, reliable, and trustworthy as possible for all.

Tom has broad experience bringing small tech products to market — and the variety of compliance adventures that can entail. They know it doesn't have to be this bad, and do what they can to remove the sharp edges and confusing corners of safe, secure, powerful tools.


Mehtab Zafar

Product Security Engineer

Mehtab is an independent product security engineer with 4 + years of Python development experience.

Projects Mehtab has contributed developmental skills to various open source code projects and has worked as a developer and mentor with Google Summer of Code for the 3 years. Mehtab's experience also includes the building of various Django/Flask applications, work on GCP, AWS and Digital Ocean cloud platforms.

Mehtab holds an OSCP certification and regularly reports bugs to Google, US DOD, etc. In his spare time, he performs Penetration, SAST & DAST tests.



Jon Callas


Edna Conway


Bruce Schneier


Niloofar Razi

Experts we're proud to work with

Chrissa Constantine

Chief Compliance Architect

Chrissa Constantine is a security professional with extensive experience in cybersecurity across multiple verticals including financial, Government, and health care. She has performed penetration tests and vulnerability assessments using industry standard tools to detect vulnerabilities that could be leveraged by an attacker to take control of applications, systems, and/or networks.

She has written articles on a variety of topics for Hakin9 and PenTest Magazine.

Bryan Austin

Security Consultant

With over 20 years of working in information systems and security, Bryan Austin is the resident social engineer and threat researcher. Bryan has a background in multiple arenas from pentesting and threat intelligence to locksmithing and law enforcement training.

When not being happy by making bad people sad, Bryan is the chief wrangler of his small farm of ducks, rabbits, feral children and veggie gardens as well as the executive fixer of projects for his amazing wife.

Bryan holds the following certifications: GIAC, GREM, Comptia A+, Network+, Security+, Pentest+, World's Greatest Dad 3 years running.